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13 min read Mar 31, 2023

How Much Does it Cost to Build a House in Idaho?

How Much Does it Cost to Build a House in Idaho

The average home building cost in the Gem State in 2023, will range between $319,00 – $1,240,000. Depending on your choice of style and area, home building costs can reach millions. Also, on average, homeowners spend 9 – 12 months building a home.

Is it cheaper to build a house in Idaho? Or should you buy a new house?

Can I Build My Own House in Idaho?

Yes! If you have an ideal piece of land, in an area you want to live in, you can definitely build your own house in Idaho. You have to budget for the time and the cost of building a house though.

You will also need permits to build. Permit fees depend on the home value or the construction area. Rarely will the permit be charged at a flat fee. Permit laws vary across counties in Idaho. Refer to your local county’s website or office for more information on home building permits.

» Permit Costs: Read more about home building permits.

Is it Cheaper to Build or Buy a House in Idaho?

Generally, buying an existing home is cheaper than building a new one. But remember, by building your own home you get a brand-new home, customized to your needs.

The cost of building a house in Idaho ranges between $319,00 – $1,240,000, with the state average at $315,520. This figure does not include land costs, excavations, permits, and other expenses. Home building prices in Idaho can reach millions depending on the build type and customizations.

If you’re considering buying a home, the median sale price (as of Jan 2023) in Idaho is $457,000.

Owner-built homes can take up to 12 months to complete. Even if you hire a contractor, you will spend 9 months building your house. So, as per Idaho real estate market, new home construction is time-consuming.

» Idaho Homes For Sale By Owner: Shop FSBO Idaho homes directly from the homeowners.

How Much Does it Cost to Build a House in Idaho?

The average cost to build a house in Idaho per square foot is $157.76 sq. ft., excluding land costs, permit fees, excavations, and other costs.

Average Cost of Building a House in Idaho

Average Home Building Costs in Idaho$315,520
Minimum (800 sq. ft.)$126,208
Maximum (5,000 sq. ft.)$788,800
Average Range$319,000 – $1,240,000

Average Cost to Build a House in Idaho by Square Footage

Below is the table showing construction cost per square foot in Idaho for varying home sizes:

Home SizeAverage Price Range
1,000 sq. ft.$157,760
1,500 sq. ft.$236,640
2,000 sq. ft.$315,520
2,500 sq. ft.$394,400
3,000 sq. ft.$473,280

Idaho Home Building Costs Breakdown in Idaho

To paint a better picture, here is a house building costs breakdown for a 2,500 sq. ft. house in Idaho:

Hard Costs to Build a House in Idaho

Hard costs comprise expenses directly involved in the home-building process that play a direct role in estimating the project’s completion.

1. Material Cost: $125,000

Building materials make up approximately 50% of the overall building prices. You can expect to spend about $50 per square foot on home-building material costs.

The cost of building materials went up 5% to 10% in 2022 compared to 2021. This was due to the increased demand for siding and other building materials and longer delivery timelines. Home building prices are expected to be volatile in 2023. Ken Simonson, Chief Economist at Associated General Contractors of America, expects price hikes and shortages to ease for some products, and to remain volatile for others in 2023.

“Cement and concrete products are likely to have continuing shortages as the nation has not added any cement production since 2009 while demand is growing, particularly from infrastructure projects.”

– Ken Simonson, Chief Economist at Associated General Contractors of America

Here are the material costs you must account for while building your home in Idaho:

  • Flooring: $6 – $8 per sq. ft.
  • Drywall: $1 – $1.76 per sheet
  • Siding: $3 – $5 per sq. ft.
  • Lumber: $650 – $1,100 per board ft.

2. Contractor(s) Charges: 10% – 20%

You need a contractor or a firm to oversee the construction process. Contractors hire other professionals, estimate the costs, and complete the construction on time.

A general contractor hires several other professionals involved in the home-building process. They include:

  • Electricians
  • Architects
  • Floor installers
  • Plumbers
  • HVAC installers
  • Carpenters, etc.

A contractor charges around 10% to 20% of the total construction value. A general contractor’s fee depends on several factors, such as property type, detailing, materials, and workforce. Apart from a contractor fee, ensure to account for each professional’s hourly rates.

Below are the average hourly rates of home building professionals in Idaho:

ProfessionalsHourly Rate*
Flooring Installers$16.72
Brick Masons$22.75
General Contractors$21.82
HVAC Technicians$25.47
Structural Engineers$36.96
*Hourly rates are sourced from

3. Electrical Cost: $7,500 – $12,500

On average new construction electrical cost per square foot is $3 to $5. This amount includes both the rough-in as well as the finishing work.

The amount you spend on electrical work will differ depending on the property size, type of wiring, wire material, etc. To save money you can DIY the electrical work, but you will still need an electrician to check the connections. Some electricians can charge up to $120 per hour.

4. Roof Installation Cost: $3,750 – $42,450

Roofing costs depend on the choice of roofing material, the slope of the roof, and the size of your house. Below is the table showing roofing costs per square foot in Idaho for various roofing materials:

Roofing MaterialAvg Cost Per 100 Sq. Ft.
Asphalt Shingle Roof$150.99 – $245.35
Tile Roof$707.75 – $1,132.40
Wood Shake Roof$495.43 – $651.13
Slate Roof$684.16 – $1,698.60
Source: ProMatcher

5. Plumbing Cost: $12,000

Plumbing costs include installing plumbing fixtures such as toilets, faucets, wash basins, bathtubs, etc. Homeowners spend around $4.50 per sq. ft. in installing plumbing fixtures in new construction or $4,080 on average (national average).

You require a plumber to fix the pipes and lay the sewage lines. Apart, you need to install new machineries like washing machines, dryers, and geysers while custom building a home in Idaho.

6. HVAC Installation Costs: $12,500

Homeowners pay $1,500 to $12,500 for installing a new HVAC system. This cost depends on several factors such as the size of the cooling area, the type of system, the brand, the addition of zones, etc. All these additional factors can increase the installation cost by $2,000 or more.

Soft Costs to Build a House in Idaho

Soft cost in home construction comprises costs that do contribute to the building process directly. They include costs like permit costs, design costs, etc.

1. Land Cost: $3,400

Before you build your house in Idaho you need to shop for land to build it on. You will incur two costs related to land:

  • Land Purchase Cost: The average price per acre in Idaho is $3,435. The cost of land depends on the size of the house you wish to build as well as the location.

Preparation Cost: You need to clear the land and level it before starting the construction process. Land preparation costs can be anywhere between $1,500 – $3,000.

    🤔 Is it cheaper to build a house in Idaho if you already own land?

    Yes. In most cases, building a house is in Idaho cheaper if you own the land. You will incur only the cost of building the home. Plus, you can customize your home to your requirements!

    » Land For Sale By Owner in Idaho: Buy land to build a house near you.

2. Idaho Home Building Permit Cost: $3,000

In Idaho contractors need a building permit to construct a new house. Construction or building permits are legal documents that authorize the house building process.

The permit costs, and building codes, vary per county and are usually charged based on the construction type, occupancy type, home building area, and project scope.

Some permits you may need along with their average cost are as follow:

  • Building Permit: $1,000 to $2,000
  • HVAC Permit: $250 to $400
  • Plumbing Permit: $50 to $500
  • Electrical Permit: $10 to $500

Building permit costs vary across counties. Refer to your local county’s websites to get the exact permit estimates.

3. Home Interior Costs: $20,000

Before you move into your new home, you’ll need furniture, electronics, utensils, silverware, and bathroom essentials. These may sound relatively cheap, but the costs can add up quickly.

The costs will depend upon your taste, quality of finishes, location, and the outlet you order from. For a 2,500 sq. ft. home, you should budget at least $20,000 on interior furnishings.

4. Home Interior Design Costs: $5,400

If designing your own interior isn’t your thing, you can hire an interior designer. A great interior designer will provide you with 3D views and renderings of how your home will look and feel before you finalize the finishes.

An interior designer will also order the right furniture, wall prints, rugs, carpets, artifacts, etc. based on your taste and functional requirements. They can also help you maximize space utilization.

But interior designers aren’t cheap. Budget $5,400 on average, but it can be more or less depending upon your requirements.

House Building Financing Options

If you have the funds to finance your dream house, you are welcome to skip this section. If not, then do not lose hope. Prepare a budget and get an estimate of how much money you need, then apply for one of the following home loans:

Home Construction Loan

There are two home loans specifically designed for home-building purposes. These include:

  • Construction-to-Permanent Loan: This loan covers both land purchasing as well home building costs. Once the construction is complete and you move into the house, the loan is converted to a traditional mortgage of 15 to 30 years.
  • Construction-only Loan: It is meant only for financing the home building, and does not cover the land purchase. After your home is ready, the entire loan amount is due. You either cover the amount by paying cash or taking out a mortgage.

Personal Loan

A personal loan will not cover your entire home-building cost. Take out a personal loan to finance a specific part of the construction. Say, you forgot to account for landscaping while budgeting your home-building finances. In such a case, a personal loan can come to your rescue.

Home Equity Loan

This applies to homeowners who already have a home and want to finance the construction of a new one. Depending on how much equity you own in your existing home, you can finance the entire construction of your new home or a part of it.

Should You Build Your Own House?

If you own land in a location you want to live in, we highly recommend building a house yourself or hiring a General Contractor to build you one. Budget 9 to 12 months for planning and construction of your new home.

If you don’t own your own land in a desirable area, we recommend you house-hunt for turnkey homes and move in quickly.

Skip the hassle of building a house, and check out FSBO properties on Make offers, negotiate directly with homeowners, and move into your new home within a month.

Eager to Know How Houzeo Works?

We’ve got you covered. Check out the following video to understand how Houzeo works and why it is one of the best For Sale By Owner websites in the U.S.

What is Houzeo?

An overview of what the platform is all about

Start Your MLS Listing NOW!

» NEED MORE CLARITY? Read these exclusive Houzeo reviews and learn why it is one of the best FSBO sites in America.

Frequently Asked Questions

1. How much does it cost to build a house per square foot in Idaho?

In the state of Idaho, homeowners can expect to pay $89.70 to $133.19 per square foot for basic building costs.

2. How much does it cost to frame a house in Idaho?

On an average of $2 to $12 approximately, homeowners have to pay to frame a house in Idaho.

3. How much does a foundation cost in Idaho?

A foundation costs $5 - $6 per square foot in Idaho depending on the thickness of the reinforced slab.

Resources for Buying a House in Idaho

Resources for Selling Your Owner-Built Home

  • List on MLS: Discover ways to list your owner-built homes on the MLS.
  • Free MLS Listing: Read to know if there are ways to list on the MLS for free.
  • Flat Fee MLS Listing: Check out how Houzeo’s FFM packages will save you thousands in commissions.
  • Flat Fee MLS Idaho: Check out the top Flat Fee MLS companies that will help you save thousands in commissions.
  • Idaho Real Estate Brokers:  Check out our rankings of top real estate brokers in Idaho.
  • Realtors in Idaho: Discover the top NAR-certified real estate professionals to sell your owner-built house.
  • How to Do For Sale By Owner in Idaho: Want to skip the hefty real estate commissions? Read our guide on how to sell your house without a realtor in Idaho.
  • Cash Buyers for Homes: Sell your house fast for cash with America’s best cash home-buying companies in 2023.
  • Flat Fee Realtor: Skip the listing commission and pay a flat fee to successfully sell your home with Flat Fee Realtors.

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